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Test: Chapter 15 (food And Agriculture)

31 Questions
Test: Chapter 15 (food And Agriculture)

Demonstrate knowledge on food and agriculture topics from chapter 15.

Questions and Answers
  • 1. 
    • A. 

      Fertilizing crops

    • B. 

      Irrigation

    • C. 

      Pest control

    • D. 

      None of the above

  • 2. 
    Farmland may become desertified if
    • A. 

      Domestic animals are allowed to overgraze the land

    • B. 

      Too many crops are grown on the land and the land gradually loses its fertility

    • C. 

      As a result of erosion, there is no fertile soil left to grow plants

    • D. 

      All of the above

  • 3. 
    Land where it is possible to grow crops is called
    • A. 

      Organic land

    • B. 

      Arable land

    • C. 

      Vegetative land

    • D. 

      All of the above

  • 4. 
    Which of the following actions contributes to soil erosion?
    • A. 

      Using compost as fertilizer

    • B. 

      Allowing land to lie fallow

    • C. 

      Driving farm machinery over fields

    • D. 

      All of these practices contribute to soil erosion

  • 5. 
    Which of the following agricultural products requires the least amount of energy?
    • A. 

      Beef cattle

    • B. 

      Wheat

    • C. 

      Dairy cows

    • D. 

      Both (b) and (c)

  • 6. 
    When a farmer uses no-till farming methods,
    • A. 

      Seeds are planted among the roots of the previous crop

    • B. 

      More erosion is likely

    • C. 

      Only organic fertilizers are used

    • D. 

      All of the above

  • 7. 
    One potential way to deal with the problem of seafood overharvesting is by intensifying ____________ efforts.
    • A. 

      Genetic engineering

    • B. 

      Subsistence farming

    • C. 

      Aquaculture

    • D. 

      Integrated pest management

  • 8. 
    Which of the following is a good way to reduce salinization?
    • A. 

      Use ocean water instead of groundwater to irrigate crops

    • B. 

      Increase the use of synthetic pesticides

    • C. 

      Using rainwater instead of groundwater on crops

    • D. 

      Adopt no-till farming methods

  • 9. 
    DDT is harmful to the environment because it
    • A. 

      Does not breakdown quickly into harmless chemicals

    • B. 

      Concentrates in the bodies of animals high in the food chain

    • C. 

      Causes some birds to lay eggs so thin that they break when the birds sit on them

    • D. 

      All of the above

  • 10. 
    A true statement about nutritional requirements in humans is that
    • A. 

      Vitamins are of limited importance in growth and development

    • B. 

      Humans need to get eight essential amino acids from the proteins they eat

    • C. 

      Carbohydrates are mainly used to make membranes and hormones

    • D. 

      Both (a) and (b)

  • 11. 
    All of the following factors can cause famines except
    • A. 

      The failure of food production to keep pace with population growth

    • B. 

      Distribution problems caused by potential turmoil

    • C. 

      New, higher-yield crops

    • D. 

      Crop failure brought on by sustained drought

  • 12. 
    The results of the green revolution were not entirely positive because
    • A. 

      There were too few subsistence farmers

    • B. 

      Use of pesticides and fertilizers increased the risk of population

    • C. 

      Substantial resources were no longer required to grow the new grain varieties

    • D. 

      All of the above

  • 13. 
    No-till farming helps to conserve soil fertility because
    • A. 

      Remnants of the previous crop are left to slowly decay

    • B. 

      Deep ridges are cut across, not down, the slopes of hills

    • C. 

      The ground is carefully turned to mix soil nutrients

    • D. 

      Only organic fertilizers and natural pesticides are used

  • 14. 
    Irrigation water usually comes from
    • A. 

      Rainwater collection

    • B. 

      Rivers and groundwater

    • C. 

      Salty sources

    • D. 

      All of the above

  • 15. 
    Pest populations that damage plants
    • A. 

      Breed more slowly in hot climates

    • B. 

      Become resistant to pesticides via natural selection

    • C. 

      Include only insects and small rodents

    • D. 

      Attack wild plants with greater success than crops

  • 16. 
    Products obtained from livestock  include
    • A. 

      Leather, wool, eggs, meat and manure

    • B. 

      Cotton, linen and nylon

    • C. 

      Wood and plastic

    • D. 

      All of the above

  • 17. 
    Earth's available arable land is being reduced by
    • A. 

      Fast-growing human populations

    • B. 

      Soil erosion

    • C. 

      Desertification

    • D. 

      all of the above

  • 18. 
    Erosion is most likely when the soil is
    • A. 

      Bare and exposed to wind and rain

    • B. 

      Plowed along the contour of the land

    • C. 

      Covered with grass

    • D. 

      Planted to forest

  • 19. 
    Plowing with machines, irrigating with drip systems and _____________ are all modern agricultural methods.
    • A. 

      Using manure

    • B. 

      Applying chemical fertilizers

    • C. 

      Irrigating with ditches

    • D. 

      Both (a) and (b)

  • 20. 
    Genetic engineering of food crops
    • A. 

      Continues to be debated among scientists

    • B. 

      Is only used with corn

    • C. 

      Must be disclosed on food ingredient labels

    • D. 

      Both (a) and (c)

  • 21. 
    The amount of a crop produced per hectare (or acre) is called the ____________________.
  • 22. 
    The health problem caused by not eating enough necessary nutirents is known as ________________.
  • 23. 
    The name for a widespread food shortage that results in many people not having enough food is called a(n) ________________.
  • 24. 
  • 25. 
    Land on which crops can be grown is called ________________ land.
  • 26. 
    The diets of people in developed countries tend to be higher in ________________ than diets of people in developing countries.
  • 27. 
    More energy, water and land are needed to produce a gram of ______________ than to produce a gram of food from plants.
  • 28. 
    A(n) _________________ is a prolonged period during which no rain falls in a particular region.
  • 29. 
    Soil that can support the growth of healthy plants is called ____________.
  • 30. 
    The accumulation of salts in the soil, which can be caused by irrigation and low rainfall, is called ____________________.
  • 31. 
    Goats, sheep, cattle and other _______________ are cud-chewing mammals with multi-chambered stomachs.
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